co-ordinate geometry

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Across
  1. 2. the horizontal line is called
  2. 4. the fixed point which distances are marked
  3. 6. The study of coordinate geometry was developed by
  4. 7. name of each part formed by axis
  5. 8. the perpendicular distance of a point from x axis
Down
  1. 1. abscissa is also called
  2. 3. the coordinate plane is also callled
  3. 5. system used to describe the position of a point